tuba : Idioms & Phrases
sax-tuba
Sax"-tu`ba noun
Etymology
SeeDefinitions
- (Mus.) - A powerful instrument of brass, curved somewhat like the Roman buccina, or tuba. 
Webster 1913
tuba root
- 
       noun woody vine having bright green leaves and racemes of rose-tinted white flowers; the swollen roots contain rotenone
       
       
 derris root; Derris elliptica.